Interim Practice

A farmer has determined that the total cost, in dollars, of selling a portion of his strawberries at the local farmer's market can be modeled by the function f(x) = 0.9x + 45 where x represents the number of pounds of strawberries that he brings to the market. Which of the following statements is true?

• The farmer's total cost of attending the farmer's market and selling

  his strawberries is $45.

• The farmer's total cost of attending the farmer's market and selling

  his strawberries is $90.

• For each additional pound of strawberries the farmer brings to the

  market, his costs increase by 45 cents.

• For each additional pound of strawberries the farmer brings to the

  market, his costs increase by 90 cents.

Tags

CCSS.HSF.LE.B.5

A jeweler that makes wooden pendants would like to participate in an upcoming art show. She has determined that the cost she would pay upfront to reserve and stock her booth would be

c(x) = 8.75x + 50

where x represents the number of pendants that she brings to the show. Which of the following statements is true?

• The jeweler's total cost of attending the art show and selling her pendants is $50.

• The jeweler's total cost of attending the art show and selling her pendants is $875.

• For each additional pendant the jeweler brings to the art show, her costs increase by $50.

• For each additional pendant the jeweler brings to the art show, her costs increase by $8.75.

Tags

CCSS.HSF.LE.B.5

Which function has the smaller minimum value, and why?

• The function g has the smaller minimum value because the minimum value of f is 6, and the minimum value of g is 2.

• The function g has the smaller minimum value because the minimum value of f is 6, and the minimum value of g is 5.

• The function f has the smaller minimum value because the minimum value of f is -10, and the minimum value of g is 2.

• The function f has the smaller minimum value because the minimum value of f is -10, and the minimum value of g is 5.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

• I only

• III only

• I and III, only

• I, II, and III

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Think about it - is it asking about slope or y-intercept?

• The bakery charges a fixed base rate of $18.25 per order.

• The bakery charges a fixed base rate of $19.80 per order.

• For each pastry that Cole ordered, the fee increased by a fixed

  percentage of 1.55%.

• For each pastry that Cole ordered, the fee increased by a fixed

  amount of $1.55.

Tags

CCSS.HSF.LE.B.5

• $1.80

• $3.20

• $5.00

• $9.00

Tags

CCSS.HSF.LE.B.5

• There were 7,400,000 people who bought tickets to the movie the first week it was out.

• There were 9,250,000 people who bought tickets to the movie the first week it was out.

• Each week, there was an 80% increase in the number of people who bought tickets to the movie.

• Each week, there was an 80% decrease in the number of people who bought tickets to the movie.

Tags

CCSS.HSF.LE.A.2

• There were 22,000 people who purchased the game on the release

  date.

• There were 55,000 people who purchased the game on the release

  date.

• Each day, there is a 60% increase in the number of people who

  purchase the game.

• Each day, there is a 40% decrease in the number of people who

  purchase the game.

Tags

CCSS.HSF.LE.A.2

• y = 15(0.55)^x

• y = 15(1.045)^x

• y = 15(0.045)^x

• y = 15(1.055)^x

Tags

CCSS.HSF.LE.A.2

• y = 32.3(5.25)^x

• y = 5.25(0.677)^x

• y = 5.25(1.323)^x

• y = 0.325(0.0525)^x

Tags

CCSS.HSF.LE.A.2